Chemistry - Salt Analysis Question with Solution | TestHub

$N{O}_2^{-}$

gives positive Red-AzO dye test only in very dilute solution.

$PbB{r}_2$

dissolves in hot water but precipitate re-appears on cooling.

Treating$S{O}_3^{2-}$

with Zn + dil. NaOH produces H₂S gas.

Potassium Tri-iodide Azide test for sulphide cannot be done in presence of SCN^Θ